/* Hello Wokwi! */

#include <LiquidCrystal_I2C.h>

const int button = 2; // pin number for push-button
const int lampu = 13; // pin number for LED

int button_status = 0; // variable to read button status
int a = 0;
int c = 0;


LiquidCrystal_I2C lcd(0x27, 20, 2);

void setup() {
  Serial.begin(9600);
  Serial.print("a =");
  lcd.init();
  //lcd.backlight();
  lcd.setCursor(1, 0);
  lcd.print("Hello, Wokwi!");

  pinMode(lampu, OUTPUT);
  pinMode(button, INPUT);
}

void loop() {
  lcd.setCursor(2, 1);
  lcd.print("mari kita coba");
  button_status=digitalRead(button);
  if (button_status == HIGH && c==0){
    a=a+1;
    Serial.println(a);
    digitalWrite(lampu, HIGH);
    lcd.backlight();
    delay(100);
    c = 1;
  } 
  if (button_status == LOW){
    c = 0;
     if (a==2){
     a = 0; 
     digitalWrite(lampu, LOW);
     lcd.noBacklight();
     delay(100);
    }
  }
    
}